40551037 has 4 divisors (see below), whose sum is σ = 40761340. Its totient is φ = 40340736.

The previous prime is 40551023. The next prime is 40551079. The reversal of 40551037 is 73015504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24462916 + 16088121 = 4946^2 + 4011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40551037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40521037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104862 + ... + 105247.

It is an arithmetic number, because the mean of its divisors is an integer number (10190335).

Almost surely, 2^40551037 is an apocalyptic number.

It is an amenable number.

40551037 is a deficient number, since it is larger than the sum of its proper divisors (210303).

40551037 is a wasteful number, since it uses less digits than its factorization.

40551037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210302.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 40551037 is about 6367.9696136210. The cubic root of 40551037 is about 343.5584659932.

It can be divided in two parts, 40 and 551037, that multiplied together give a triangular number (22041480 = T₆₆₃₉).

The spelling of 40551037 in words is "forty million, five hundred fifty-one thousand, thirty-seven".